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Number
$1963$ (one thousand, nine hundred and sixty-three) is:
- $13 \times 151$
- The $18$th integer $m$ such that $m! - 1$ (its factorial minus $1$) is prime:
- $3$, $4$, $6$, $7$, $12$, $14$, $30$, $32$, $33$, $38$, $94$, $166$, $324$, $379$, $469$, $546$, $974$, $1963$
Also see